Home / 1,134,643.80-1,699,632.90-780,058.20

Finding the Fourth Proportional to 1,134,643.80, 1,699,632.90 and 780,058.20

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Solution

The fourth proportional to 1,134,643.80, 1,699,632.90 and 780,058.20 is: 1,168,483.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,643.80 : 1,699,632.90 = 780,058.20 : x
  2. Step 2: Convert to fraction form
    1,134,643.80/1,699,632.90 = 780,058.20/x
  3. Step 3: Cross multiply
    1,134,643.80x = 1,699,632.90 × 780,058.20
  4. Step 4: Simplify right side
    1,134,643.80x = 1,325,812,580,634.78
  5. Step 5: Solve for x
    x = 1,325,812,580,634.78/1,134,643.80
  6. Step 6: Final answer
    x = 1,168,483.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.